A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.
afbma std tolerance for industrial needle bearings standard tolerance designation, 0.1563 inches nominal bore diameter, 0.2813 inches nominal overall outside diameter, steel corrosion resisting roller material, rigid alignment type